Régnier Motor Company's introduction to aircraft engine production came after acquisition of licences to build the de Havilland Gipsy Major and Gipsy Six. Though they remained influenced by de Havilland practice their products began to diverge and eventually contained original designs.[1][2] By the mid-1930s they had several four cylinder air-cooled inverted inline engines on offer, including the R.4L-02 displayed at the 1936 Paris Air Show.[3] Though it shared a name with a post-war model, the two engines were very different: the 1936 engine produced 63–67 kW (85–90 hp) from about 4 litres and with a dry weight near 91 kg (200 lb),[2][3] the later reached 127 kW (170 hp) from 6.3 litres at a weight of 155 kg (342 lb).[4]
During the Occupation of France and in the years shortly after World War II, Régnier designed and produced a set of three simplified four-cylinder inverted air-cooled inline engines of increasing capacity and power, the 4J, 4K and 4L. The specifications of the post-war 4L engine are similar, though not identical to, those of the pre-war R.4, whilst those of the pre-war R.4L specifications are closer to that of the post-war 4K.[3][5] In 1946[4] or 1947,[1] Régnier, now nationalised, was absorbed into SNECMA and the 4L engines, the most widely used member of the series,[1] became the SNECMA-Régnier 4L. Notable constructional features, shared with the 4J and 4K engines,[5] included machined steel cylinder barrels with external baked-on anti-corrosion varnish and separate cylinder heads with unusual metallo-plastic seals, held to the crankcase by long bolts. Screwed-in plug bushes and valve seats were made from aluminium-bronze. The 4L's five-bearing steel crankshaft was forged, as were the duraluminconnecting rods which had split, steel backed, bronze bearings. The crankcase was cast from aluminium alloy.[1][4]
SNECMA continued to produce the 4L series until at least 1956.[4] The most prolific type to use it was the military Nord NC.856A, with 112 examples.[6]
Variantsedit
Data from Jane's All the World's Aircraft 1956/57.[4] The types are alternatively written as 4LO-4, etc.[6]
4LO
early post-war designation
4L-00
First post-war version, maximum continuous power 101 kW (135 hp) at 2,280 rpm.
4L-02
Higher compression ratio of 7.25:1, maximum take-off and continuous power 127 kW (170 hp) at 2,500 rpm.
4L-04
As 4L.00 but rearranged accessories.
4L-06
As 4L.02 but rearranged accessories.
4L-08
As 4L.04 but with higher compression ratio of 6.8:1, maximum take-off and continuous power 119 kW (160 hp).
Wikimedia Commons has media related to Régnier R.4L.
^ abcdGunston, Bill (1989). World Encyclopaedia of Aero Engines (2 ed.). Wellingborough: Patrick Stephens Ltd. pp. 134–5. ISBN1-85260-163-9.
^ abGrey, C.G. (1972). Jane's All the World's Aircraft 1938. London: David & Charles. p. 68d. ISBN0715-35734-4.
^ abc"Engines at the Paris Show". Flight. Vol. XXX, no. 1457. 26 November 1936. p. 578.
^ abcdefBridgman, Leonard (1956). Jane's All the World's Aircraft 1956-57. London: Jane's All the World's Aircraft Publishing Co. Ltd. pp. 432–3.
^ abBridgman, Leonard (1948). Jane's All the World's Aircraft 1948. London: Sampson, Low, Marston and Co. Ltd. pp. 54–5d.
^ abGaillard, Pierre (1990). Les Avions Francais de 1944 à 1964. Paris: Éditions EPA. p. 63. ISBN2-85120-350-9.
^ abcdefgWilkinson, Paul H. (1957). Aircraft engines of the World 1957 (15th ed.). London: Sir Isaac Pitman & Sons Ltd. p. 281.
December 20, 2023
snecma, régnier, snecma, régnier, french, four, cylinder, cooled, inverted, inline, piston, engine, introduced, shortly, after, world, snecma, régnier, 4lsnecma, régnier, 4l08type, cylinder, inverted, cooled, linenational, origin, francemanufacturer, snecmafir. The SNECMA Regnier 4L is a French four cylinder air cooled inverted inline piston engine introduced shortly after the end of World War II SNECMA Regnier 4LSNECMA Regnier 4L08Type 4 cylinder inverted air cooled in lineNational origin FranceManufacturer SNECMAFirst run c 1945Major applications Nord NC 856ADeveloped from 1936 R 4 Contents 1 Design and development 2 Variants 3 Applications 4 Specifications Regnier 4L 00 4 1 General characteristics 4 2 Components 4 3 Performance 5 See also 6 ReferencesDesign and development editRegnier Motor Company s introduction to aircraft engine production came after acquisition of licences to build the de Havilland Gipsy Major and Gipsy Six Though they remained influenced by de Havilland practice their products began to diverge and eventually contained original designs 1 2 By the mid 1930s they had several four cylinder air cooled inverted inline engines on offer including the R 4L 02 displayed at the 1936 Paris Air Show 3 Though it shared a name with a post war model the two engines were very different the 1936 engine produced 63 67 kW 85 90 hp from about 4 litres and with a dry weight near 91 kg 200 lb 2 3 the later reached 127 kW 170 hp from 6 3 litres at a weight of 155 kg 342 lb 4 During the Occupation of France and in the years shortly after World War II Regnier designed and produced a set of three simplified four cylinder inverted air cooled inline engines of increasing capacity and power the 4J 4K and 4L The specifications of the post war 4L engine are similar though not identical to those of the pre war R 4 whilst those of the pre war R 4L specifications are closer to that of the post war 4K 3 5 In 1946 4 or 1947 1 Regnier now nationalised was absorbed into SNECMA and the 4L engines the most widely used member of the series 1 became the SNECMA Regnier 4L Notable constructional features shared with the 4J and 4K engines 5 included machined steel cylinder barrels with external baked on anti corrosion varnish and separate cylinder heads with unusual metallo plastic seals held to the crankcase by long bolts Screwed in plug bushes and valve seats were made from aluminium bronze The 4L s five bearing steel crankshaft was forged as were the duralumin connecting rods which had split steel backed bronze bearings The crankcase was cast from aluminium alloy 1 4 SNECMA continued to produce the 4L series until at least 1956 4 The most prolific type to use it was the military Nord NC 856A with 112 examples 6 Variants editData fromJane s All the World s Aircraft 1956 57 4 The types are alternatively written as 4LO 4 etc 6 4LO early post war designation 4L 00 First post war version maximum continuous power 101 kW 135 hp at 2 280 rpm 4L 02 Higher compression ratio of 7 25 1 maximum take off and continuous power 127 kW 170 hp at 2 500 rpm 4L 04 As 4L 00 but rearranged accessories 4L 06 As 4L 02 but rearranged accessories 4L 08 As 4L 04 but with higher compression ratio of 6 8 1 maximum take off and continuous power 119 kW 160 hp 4L 14 7 4L 20 00 for inverted flight 7 4L 22 02 for inverted flight 7 4L 24 04 for inverted flight 7 4L 26 06 for inverted flight 7 4L 28 08 for inverted flight 7 4L 34 14 for inverted flight 7 Applications editData from Gaillard 1990 Aubert PA 20 Cigale Major Boisavia Anjou Boisavia Mercurey Brochet MB 110 Farman F 520 amp 521 Guerchais Roche T 35 Leduc RL 21 LIBIS KB 6 Nord Norecrin Nord Norelan Nord 3202 Nord NC 856A H amp N SNCASE SE 2311Specifications Regnier 4L 00 editData from Jane s All the World s Aircraft 1956 57 4 General characteristics Type Four cylinder in line inverted air cooled piston engine Bore 120 mm 4 72 in Stroke 140 mm 5 51 in Displacement 6 3 L 384 cu in Length 1 366 mm 53 78 in over starter Width 500 mm 19 69 in Height 760 mm 29 92 in Dry weight 155 kg 342 lb dryComponents Valvetrain 1 inlet and 1 exhaust valve under each cylinder head operated via tappets and push rods from camshaft Fuel system Zenith 1DC carburettor on port side fed by 2 Guyot K or O pumps 2 BG plugs cylinder BG dual magneto Oil system Pressure lubrication from engine driven pump 2 scavenge pumps Cooling system Air finned cylinder headsPerformance Power output Maximum continuous 101 kW 135 hp at 2 280 rpm take off 110 kW 147 hp at 2 340 rpm Compression ratio 6 2 1 Fuel consumption 35 L 8 imp gal 9 US gal per hour at maximum cruising power 87 kW 116 hp at 2 160 rpm See also editRelated lists List of aircraft enginesReferences edit nbsp Wikimedia Commons has media related to Regnier R 4L a b c d Gunston Bill 1989 World Encyclopaedia of Aero Engines 2 ed Wellingborough Patrick Stephens Ltd pp 134 5 ISBN 1 85260 163 9 a b Grey C G 1972 Jane s All the World s Aircraft 1938 London David amp Charles p 68d ISBN 0715 35734 4 a b c Engines at the Paris Show Flight Vol XXX no 1457 26 November 1936 p 578 a b c d e f Bridgman Leonard 1956 Jane s All the World s Aircraft 1956 57 London Jane s All the World s Aircraft Publishing Co Ltd pp 432 3 a b Bridgman Leonard 1948 Jane s All the World s Aircraft 1948 London Sampson Low Marston and Co Ltd pp 54 5d a b Gaillard Pierre 1990 Les Avions Francais de 1944 a 1964 Paris Editions EPA p 63 ISBN 2 85120 350 9 a b c d e f g Wilkinson Paul H 1957 Aircraft engines of the World 1957 15th ed London Sir Isaac Pitman amp Sons Ltd p 281 Retrieved from https en wikipedia org w index php title SNECMA Regnier 4L amp oldid 1101671844, wikipedia, wiki, book, books, library,
